No problem, we've got 7453 and 3140 to multiply
7453 × 3140 = 3140 × (7453)
+ 3140 × 3 that equals 9420
+ 3140 × 50 which equals 157000
+ 3140 × 400 what gives us 1256000
+ 3140 × 7000 that equals 21980000

= 23402420
